The present invention relates to a method for searching a document
database such as the Internet and ranking the results obtained from such
a search. The invention also relates to ranking of a set of numerical
data according to a set of user specified preferences, including target
range, fuzziness and bias. A fuzzy score is calculated for each database
record satisfying a query and the results ranked according to fuzzy
score. The fuzzy score is calculated using a Lorentzian fuzzy score
formula.